CERN Accelerating science

ATLAS Note
Report number	ATL-DAQ-PROC-2016-015
Title	Tile Rear Extension Module for the Phase-I Upgrade of the ATLAS L1Calo PreProcessor System
Author(s)	Andrei, George Victor (Kirchhoff-Institut f\"{u}r Physik) (+)
Corporate Author(s)	The ATLAS collaboration
Collaboration	ATLAS Collaboration
Publication	2017
Imprint	24 Oct 2016
Number of pages	9
In:	JINST 12 (2017) C03034
In:	Topical Workshop on Electronics for Particle Physics, Karlsruhe, Germany, 26 - 30 Sep 2016, pp.C03034
DOI	10.1088/1748-0221/12/03/C03034
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	ATLAS ; L1Calo ; PreProcessor ; Phase-I ; Upgrade ; TREX
Abstract	After the Phase-I ATLAS upgrade the Tile calorimeter will have to provide its data via fast optical links to the new Feature Extractor (FEX) modules of the L1Calo trigger system. In order to provide the FEXes with digitised Tile data, new Tile Rear Extension (TREX) modules need to be developed and installed in the existing L1Calo PreProcessor system. The TREX modules are highly complex PCBs, with state-of-the-art FPGAs and high-speed optical transmitters working at rates up to 14 Gbps. The prototype design of TREX and first corresponding test results will be presented.
Copyright/License	Preprint: (License: CC-BY-4.0)

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